Calvinist missionaries. If you think that sounds like an oxymoron, you’re not alone. Yet a close look at John Calvin’s life and writings reveals a man who was passionate about the spread of the gospel and the salvation of sinners.

From training pastors at his Genevan Academy to sending missionaries to the jungles of Brazil, Calvin consistently sought to encourage and equip Christians to take the good news of salvation to the very ends of the earth.